Carton.



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' 'UNITED STATES PA'.riiNT/lvv oFFioE.

MARsnLI/Us T. Asn, or BUFFALO, NEW YORK.- p'

QQcamarote To all whom t may concern:

Be it known that I, M'AnsELiUs T. AsH,'a citizen of the United States, residing at Buffalo, in the county of Erie andState of New York, have inventednew and useful Improvements in Cartons, of which the following is a specification.

This invention relates to cartons or boxes which are usuallymade of paste board or vcard board for packinggc'ereal or breakfast foods although the same may also be used for other purposes. In cartons of this character as heretofore constructed the jointbetween the several parts thereof would not be effectually closed upon folding the same one over another so that the same were not dust or insect proof. It is the purpose of this invention to provide a carton which does not 'require any more stock than those he`reto.

permits of effectively fore used but which closing the joints between the severalmembers of the carton vand excluding dust and insects from the interior thereof.- In the accompanying drawings:

Figure l is a perspective view of a blank from which my improved carton is made. Figs. 2-6 are similar views showing successive stages in the operation of folding the blank to produce the carton. Fig. 7 is a vertical longitudinal section of the completed carton taken in line 1 a 'vertical transverse section of the same taken in line 8 8, Fig. 7. Fig. 9 is a horizontal section thereof taken inline 9-9, Fig. 7. Fig. 10 is a fragmentary plan view of a modified form of the blank from which my improved carton may be constructed.

' Similar characters of reference indicate corresponding partsr throughout the several views.

In -its general organization this cartoni' comprises fourlongitudinal side walls 1, 2, i 3, 4 which are arrangedto4 form a tubular body of rectangular cross section, and two.

end walls or heads whichl close opposite ends of thel tubular body and each of which comprises an inner ply composed of two sections 5, 5- an intermediate ply 6, and an' outer ply 7. 'Y l The several side walls form a c ontinuous row circumferentially of the carton, the two intermediate walls 2, 3 having their opposinglongitudinal edges connected and bent to each other along a longitudinal line 8, t e terminal wall 1 being connected at its inner longitudinal edge with the adj a- Speciication of Letters Patent.

`Application led January 6, 1916. Serial No. 70,555.

7 7, Fig. 9. Fig. 8 is` cent corresponding edge of the intermediate wall 2 and bent relatively thereto along a longitudinal line -9 wall 4 being connected at its inner longitudinal edge with the corresponding edge of the other intermediate wall 3 and bent relatively thereto along a longitudinal outer longitudinal edges of the terminal walls 1, 4-are preferably connected with each Patented Apr. 17,1917,

and the other terminal line 10. VThe I' i other. by means of' a sealing iiap l1 connected with the outer longitudinaLedge of the terminal wall 4 and bent relatively thereto along the longitudinal line 12 and secured to the. inner side of,A the outer. longitudinal edgeportion of thel other terminal wall 1 .by means of a suitable adhesive, as shown in Fig. 9.

The sections 5, 5 of the inner ply of each end head or wall are connected at their outer edges` with the corresponding transverse edges of the'terininal wall 1 and the intermediate wall 3 and bent along transverse lines 13, 23 while their inner ends are arranged opposite each other, as shownin Fig. 7.

The intermediateiply 6 of each head is 'equal in length to the`width of the terminal ply 4 and connectedat its inner edge with the adjacent transverse edge of this wall and bent' along the transverse line 14 between these parts so that this lply overlaps both sections of the inner ply.

The outer ply 7 of each end head or wall is connected at its inner edge to the adjacent transverseedge of Vthe intermediate wall 2l land bent relatively thereto along the trans- '.Verse line l5 so as to overlap the companion intermediate ply 6, as shown in Figs. 7 and l8, this outer plyand intermediate ply being securedtogether upon completing the carton by an adhesive such as glue or cement. I

In order to eiectually close the jointsl between the transverse edges of each outer ply 7 andthe adjacent parts of the terminal and intermediate walls 1, 3, two transverse sealing iiaps 16, 16 are arranged at opposite vtransverse edges of the respective outer ply 7 and bent relatively thereto along thetrans verse linesl 17, 17 and secured to the outer sides of the terminal and intermediate walls 1, 3 by cement or otherwise. ,The .stock for producingl these transverse sealingv .Flaps is obtained by -forming L-shaped'slits 18 in the 1-10 blank from which the carton is made between opposite transverse ends of the outer ply and the adjacent parts of the terminal and interthe blank parallel with the bending lines 17,

17 and then laterally along the bending lines 13 to the junctions of the bending lines 15, 8 and 9, so that the inner ply sections of the'respective head are narrowed to an eX- tent equal to the width of said transverse sealing flaps. this means the necessary stock for making the transverse sealing iaps is obtained by a reduction in the width ot the inner ply sections of each head without aecting the strength or security of the head and without requiring any increase in the dimension of the blank for this purpose.

In the operation of making the carton the blank for the same is first cut into the form shown in Fig. 1. along the longitudinal lines 8, 9 and 10 to form the tubular body the walls of which are fastening the longiretained in position by tudinal sealing iap of one terminal wall to the other terminal wall. of each end head are then folded relatively to each other. ln Figs. 2-5 it is assumed that the lower head has already been completed. In order to complete the upper head also the inner pl sections of the same are first bent inward y 3. The intermediate ply is then bent 1nwardly, as shown in Fig. 4, followed by inwardly bending the outer ply, as shown in Fig. 5. Finally the transverse sealing flaps of the upper head are bent downwardly and secured to the outer sides of the terminal and intermediate walls, as shown in Figs. 8 and 9, thereby completing the carton.

By this means a perfectly tight package .A is obtalned which reliably protects the concost. f

tents of the same without any increase in It desired theply section 5, 5 of each head may be arranged between the plies 6 and 7, instead of placing the ply 6 between'the plies 5, 5 and 7.

1n Figs. v1-6, the opposite ends of the flaps are square but the as' shown at 19 intFig.

transverse sealing same may be beveled,

lt will be apparent that by The same is .then *bent The several plies y from the position. shown in Fig. 2 to the position shown in the slit 20 separating r of sectionswhich are bent toward each other from opposite walls of the body and are reduced in Width equal to the width of said sealing flaps the stock otwhich is removed from said ply sections.

2. A carton having four longitudinal side walls, and a transverse end wall, each side wall consisting of a single ply and the several side walls being constructed from a continuous sheet to form two intermediate side walls which have their opposin longitudinal edges connected with each ot er and two terminal 'side walls which meet at their outer longitudinal edges, one of said terminal side walls being provided on its outerlongitudinal edge with a sealing flap which is secured to the corresponding longitudinal edge of the other terminal side wall, and said end wall comprising inner intermediate and outer plies, said inner p ly being composed of two sections which are connected at their outerA edges, respectively, with adJacent transverse edges of diametrically opposite sidewalls lwhile their inner edges are arranged opposite each other, said intermediate ply being yconnected at one of its longitudinal edges with the transverse edge of one of the other pair of diametrically op-` posite side walls, and said outer ply being connected at one of its longitudinal edges with the correspondin transverse edge o the other side wall o the last mentioned pair, and said outer ply being provlded at its opposite transverse edges with transverse sealing flaps which are secured to the outer side of one of the intermediate and one of the terminal side walls.

. MARSELUS T. ASH. 

